Obesity remains a serious health problem and it is no secret that many people want to lose weight. Behavioral economists typically argue that “nudges” help individuals with various decisionmaking flaws to live longer, healthier, and better lives. In an article in the new issue of Regulation, Michael L. Marlow discusses how nudging by government differs from nudging by markets, and explains why market nudging is the more promising avenue for helping citizens to lose weight.

Two long wars, chronic deficits, the financial crisis, the costly drug war, the growth of executive power under Presidents Bush and Obama, and the revelations about NSA abuses, have given rise to a growing libertarian movement in our country – with a greater focus on individual liberty and less government power. David Boaz’s newly released The Libertarian Mind is a comprehensive guide to the history, philosophy, and growth of the libertarian movement, with incisive analyses of today’s most pressing issues and policies.

Unfortunately, Obama has responded to the latest incident by following the same failed strategy as his predecessors when confronted with drug war losses: a stronger fight against drugs.

Though the deaths are the first in which Mexican drug cartels appear to have so brazenly targeted and killed individuals linked to the U.S. government, illicit drug trade violence has killed some 18,000 people in Mexico since President Calderon came to power in December 2006—more than three times the number of American military personnel deaths in the Iraq and Afghanistan wars combined.

The carnage only shot up after Calderon declared an all-out war on drug trafficking upon taking office. After more than three years, the policy has failed to reduce drug trafficking or production, but it is weakening the institutions of Mexican democracy and civil society through corruption and bloodshed, which are the predictable products of prohibition.

The 29 people killed in drug-related violence this weekend in a 24 hour period in the state of Guerrero sets a dubious record for a Mexican state. And an increasing number of Mexicans, including former Mexican Foreign Minister Jorge Castañeda, are calling for a thorough rethinking of anti-drug policy in Mexico and the United States that includes legalization. Legalization would significantly reduce drug cartel revenue and put an end to an enormous black market and the social pathologies that it creates.

John Walters, former director of the White House Office of National Drug Control Policy, turns in a rambling and at times incoherent defense of the current war on drugs in today’s WSJ. There are many points worth picking apart, but this line of reasoning, loosely speaking, was my favorite:

What is the alternative to the progress we are making? We have made the kind of compromises with alcohol that some suggest making with illegal drugs…

Today there is terrible violence in Mexico… The drug trade is a tool, not the cause of these violent criminal groups. Making it easier to produce and traffic drugs will strengthen, not weaken, these terrorists.

Right. Because we have all of these beer distributors and liquor-store owners running around the country kidnapping folks, killing judges, prosecutors, and journalist and generally terrorizing the populace.

I shudder to imagine the damage to our society were the illicit drug trade conducted in a strict regulatory framework reflective of our alcohol and medical supply distribution systems.